Multiplexing with fiber

Just an question
Is there a way of using the studio converter and the camera converter to also carry Ethernet signals for ptz control. This way I would have to run a 300 foot Ethernet cable for ptz control
I would rather do it on one simple fiber line
What other signals would you like to see the fiber line carry.
Open to suggestions. The more the merrier

For a ptz camera, you don't need the video return. If you have a duplex fiber, you can use the second fibre with a cheap ethernet converter to have the ptz control.
The most difficult is to find converter with one single mode fiber and LC connector. If you need a return for the ethernet, you must find converter with 2 different wavelength. First converter send at 1310 and receive at 1550 and the other is the reverse receive at 1310 and send at 1550 and your fiber become a cat6 ethernet cable

As Denis mentioned. Gigabit SFPs are available as "BiDi" (bi-directional) that handles communication over one fiber.

1. as mentioned, easiest solution, although not multiplexing, is to replace the return video fiber with a set of one-strand gigabit media converters to carry your PTZ data.

2. if you actually need the return video, then next easiest solution is to upgrade your fiber cable to 4 or 6 strand cable, using the extra strands for ethernet MCs.

3. If you are hell bent on using return video and sticking with 2 strand cable, then you will have to "roll your own" solution with optical splitters/combiners and devices with other frequencies of laser to share the glass with what you are already using. there are a few pre-built solutions that don't include the talkback function of the BMD converters, but will get you video both ways + ethernet.

the second solution is what we live by, all of our cable is either 6 or 12 core fiber. we just bundle gear that we need in a location into a rack case so there is only one fiber cable to run between ends. VERY time efficient when it comes to setup/teardown.

as for what all do you want signal wise in fiber? we have created many systems that transport many 3G-SDI video in both directions, ethernet via managed switches (multiple networks), and audio/comms channels for mics, ifbs and intercom.

pictured here, 6 strands of fiber gets you
3 in and 3 out 3G-SDI video
6 isolated ethernet networks, with 2GB of bandwidth between ends
32in and 32 out audio, 24x24 for general audio needs, and 8x8 for 8 discrete channels of intercom belt packs
extension of one matrix intercom panel (RTS ADAM-ZEUS)
the top box goes near your control room, the bottom box goes in the field/annouce booth/wherever you need signals. the 6 little red caps on each box is where the fiber goes between ends.
we've been using this system for years with no issues, on some pretty high profile network broadcasts



it's pretty cool what you can do with fiber and a little imagination.

I've seen fiber converters that are specifically made for this purpose with PTZ cameras. It's a fiber converter with SDI and RS232 / RS285 / RS422 euro block. Thor Broadcast makes a few and there's of course the off brand chinese ones you can find.

https://thorbroadcast.com/products/sdi-2

You can also get Bidis for video connections (forward and return over the same strand). I haven't tried it but maybe you can swap the SFP in your SDI-Fiber converter to a Bidi-SFP and use just 1 strand for video forward/return and the other strand for network.

Cheers

Robert

@Kevin, I see you have AW HE60.. We are busy with a unit that does SDI, genlock and network over 2 strands fiber.. (Duocon, Fieldcast, DualLC whatever you preffer)

@Kevin, I see you have AW HE60.. We are busy with a unit that does SDI, genlock and network over 2 strands fiber.. (Duocon, Fieldcast, DualLC whatever you preffer)

Please kindly explain

I bow to your knowledge

We are developing a product like that. As we also develop Fiber muxes with 4 SDI tranceivers, Network, Sync, Data, etc trough 2 fibers..

But we develope a unit tailor made for PTZ cameras.